Medium severity6.5NVD Advisory· Published Apr 17, 2026· Updated Apr 24, 2026
CVE-2026-28214
CVE-2026-28214
Description
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the ClumpletReader::getClumpletSize() function can overflow the totalLength value when parsing a Wide type clumplet, causing an infinite loop. An authenticated user with INSERT privileges on any table can exploit this via a crafted Batch Parameter Block to cause a denial of service against the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*range: <3.0.14
- (no CPE)range: <5.0.4, <4.0.7, <3.0.14
Patches
Vulnerability mechanics
References
4- github.com/FirebirdSQL/firebird/security/advisories/GHSA-7cq5-994r-jhrfnvdExploitVendor Advisory
- github.com/FirebirdSQL/firebird/releases/tag/v3.0.14nvdRelease Notes
- github.com/FirebirdSQL/firebird/releases/tag/v4.0.7nvdRelease Notes
- github.com/FirebirdSQL/firebird/releases/tag/v5.0.4nvdRelease Notes
News mentions
0No linked articles in our index yet.